<!DOCTYPE html>
<html>
    <head>
        <script src="/w3c/resources/testharness.js"></script>
        <script src="/w3c/resources/testharnessreport.js"></script>
        <script src="mediasource-util.js"></script>
        <link rel="stylesheet" href="/w3c/resources/testharness.css">
    </head>
    <body>
        <div id="log"></div>
        <script>

            mediasource_test(function(test, mediaElement, mediaSource)
            {
                test.failOnEvent(mediaElement, 'error');
                test.endOnEvent(mediaElement, 'ended');

                var sourceBuffer = mediaSource.addSourceBuffer(MediaSourceUtil.AUDIO_ONLY_TYPE);

                assertSeekableEquals(mediaElement, '{ }', 'mediaElement.seekable');
                test.done();
            }, 'Get seekable time ranges when the sourcebuffer is empty.');

            mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
            {
                var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);
                test.expectEvent(mediaElement, 'durationchange', 'mediaElement got duration');
                sourceBuffer.appendBuffer(initSegment);
                test.waitForExpectedEvents(function()
                {
                    assert_equals(mediaElement.duration, 6.042);
                    assertSeekableEquals(mediaElement, '{ [0.000, 6.042) }', 'mediaElement.seekable');
                    test.done();
                });
            }, 'Get seekable time ranges after init segment received.');

            mediasource_testafterdataloaded(function(test, mediaElement, mediaSource, segmentInfo, sourceBuffer, mediaData)
            {
                var initSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.init);
                test.expectEvent(mediaElement, 'durationchange', 'mediaElement got duration after initsegment');
                sourceBuffer.appendBuffer(initSegment);
                test.waitForExpectedEvents(function()
                {
                    test.expectEvent(mediaElement, 'durationchange', 'mediaElement got infinity duration');
                    mediaSource.duration = Infinity;
                    test.waitForExpectedEvents(function()
                    {
                        assertSeekableEquals(mediaElement, '{ }', 'mediaElement.seekable');

                        // Append a segment from the middle of the stream to make sure that seekable does not use buffered.start(0) or duration as first or last value
                        var midSegment = MediaSourceUtil.extractSegmentData(mediaData, segmentInfo.media[2]);
                        test.expectEvent(sourceBuffer, 'update');
                        test.expectEvent(sourceBuffer, 'updateend');
                        sourceBuffer.appendBuffer(midSegment);
                        test.waitForExpectedEvents(function()
                        {
                            assert_equals(mediaElement.seekable.length, 1, 'mediaElement.seekable.length');
                            assert_equals(mediaElement.buffered.length, 1, 'mediaElement.buffered.length');
                            assert_not_equals(mediaElement.seekable.start(0), mediaElement.buffered.start(0));
                            assert_equals(mediaElement.seekable.start(0), 0);
                            assert_not_equals(mediaElement.seekable.end(0), mediaElement.duration);
                            assert_not_equals(mediaElement.seekable.end(0), mediaElement.buffered.start(0));
                            assert_equals(mediaElement.seekable.end(0), mediaElement.buffered.end(0));
                            test.done();
                        });
                    });
                });
            }, 'Get seekable time ranges on an infinite stream.');
        </script>
    </body>
</html>
